Water pump



P 1951 J. M. BALDWIN 2,558,842?

WATER PUMP Filed Deb. 24, 1949 v Zhmentor ttorneg Patented Sept. 25,1951 UNITED STATES PATENT OFFICE 2,568,842 j WATER PUMP v John M;Baldwin, Spokane, Wash. I I Application December 24, 1949, Serial'No.134,880

This invention relates to a water pump and it is one'object of theinvention to provide a pump which is particularly adapted for use inconnection with an irrigation system and will not only serve to deliverwater from a, source of supply but also serve to deliver a portion ofthe water to a reservoir mounted in an elevated position.

Another object of the invention is to provide a pump wherein waterflowing from a, supply pipe is delivered into a water chamber of acontainer which is slidabl vertically in a tank or casing and serves toshift the container downwardly from a raised position, the tank havingan outlet controlled by a valve which is moved to opened and closedpositions by vertical movement of the container and the containerserving to actuate operating means for a pump by means of which water isforced to a reservoir.

Another object of the invention is to provide a pump of this characterwherein the container is moved to a raised position by floating actionof air in an air chamber formed in the container 5 Claims. (01.10345)under a water chamber in the upper portion of the container.

Another object of the invention is to provide a pump structure whereinwater in the upper water chamber is retained therein until weight of thewater moves the container downwardly and a valve controlling flow ofwater through a downwardly outlet pipe of the water chamber is movedupwardly to an opened position by contact with the bottom of thecontainer.

Another object of the invention is to provide a pump structure whereinthe container carries an arm having a finger'dlsposed between side armsof a stem for a vertically movable valve by means of which flow of waterfrom the water chamber of the tank or casing is controlled and thuscause this valve to be opened and closed as the container approacheslimits of its Vertical movement during operation of the pump.

Another object of the invention is to provide the pump structure with apump which is in communication with a sump formed at the inner end of atrough into which water flows from the tank, the pump including avertically movable piston having its piston rod connected with operatingmechanism actuated by vertical movement of the container.

Another object of the invention is to provide a pump structure which issimple in construction and will operate very efliciently and serve veryefiectively to force water to the elevated reservoir while water isbeing delivered to an irrigation ditch or trough. 1 L

The invention is illustrated in the accompan ring drawings wherein:

Fig. 1 is a side view of the improved pump structure and the reservoirto which water is forced.

Fig. 2 is a sectional view upon an enlarged scale taken verticallythrough the pump structure.

Fig. 3 is a fragmentary-sectional view upon an enlarged scale takenalong the line 3-3 of Figure 2. I

The tank or casing I of this improved pump I structure maybe formed ofmetal, or other suitable material, and is open at its top and circularin cross section. The bottom 2 of the tank is formed at its center witha depression or recess 3 which is counter sunk in the concrete base orfoundation 4 upon which the tank rests. A trough 5 extends from theportion of the foundation upon which the tank rests and at its inner endthe trough is formed'with a, sump 6. Above this sump the tank is formedwith an outlet 1 which projects from a side of the tank at the bottomthereof so that water flowing through the outlet. neck may flowdownwardly through the lower portion of a vertically disposedcylindrical'valve casing B and into the inner end of the trough to fillthe sump and flow along the trough to an irrigation ditch or to anyother point where the water is to be used. The valve casing 13 is heldvertically by a brace 9 and in this casing is mounted a valve plungerill which serves as a closure for the outlet spout I when in aloweredposition but is disposed out of blocking relation to the spout when inthe raised or opened position shown in Figure 2. A stem or rod I lextends upwardly from the valve plunger and projects from the'upper endof the valve casing, its length being such that it projects above theupper end of the tank or casing I. The upper end of the stem or rod isbent to form an upper ear l2 which projects towards the casing or tankand in downwardly spaced relation to the upper ear the rod carries alower ear [3 which also projects inwardly towards the tank in parallelspaced relation to the upper ear.

The valve plunger 10 mustbe yieldably held in a closed position or anopened position and in order to do so there has been provided a togglestructure l4 having a rod l5 which has at its inner end a cross head I6pivotally mounted between brackets I! carried by and projectinghorizontally from the tank. The rod is thus mounted for verticalswinging movement, and referring to Figure 3 it will be seen thattheouter endportionor the rod slidably passes through a collar I8carrying a laterally extending pin 19 which is loosely mounted throughan opening 20 formed through the rod ll transversely thereof. A washer2| and a nut 22 are mounted upon the protruding end of the pin l9 andserve to prevent the pin from slipping longitudinally out of the opening20. A helical spring 23 which is coiled about the rod I has its innerend bearing against a disk 24 surrounding the inner end portion of therod and the outer end of the spring bears against the collar andyieldably resists movement of the rod and the collar relative to eachother. Therefore when the rod H is shifted vertically the rod l5 of thetoggle must be forced past a dead center and the spring will then expandand cause the valve rod 1 l to be held in an adjusted position with thevalve plunger in an opened or closed position according to whichdirection rod H is moved.

A container 25 which is also preferably formed of metal, and is circularin cross section, fits into the tank or casing I through the open upperend thereof and is slidable vertically in the tank. This container isdivided by a horizontal partition 26 to form an upper water chamber 21and a lower air chamber 28, the upper chamber being open at its top andthe lower chamber being entirely closed so that air will be confinedtherein and this portion of the container serves as a float. A dischargepipe 29 is disposed vertically centrally of the container with its lowerportion passing through the bottom 33 of the container and projectingdownwardly therefrom, the upper portion of the pipe being enlarged toform a mouth 3| which resembles a funnel and mounted through an openingin the partition where it is secured by solder or welding 32 whichfirmly holds the outlet pipe to the partition and forms an air tightjoint about the upper edge of the mouth 3|. Solder or welding may alsobe employed for forming an air tight joint about the portion of the pipewhich passes downwardly through the bottom of the container and aboutthe marginal edge of the partition. Spiders 33 are mounted in thedischarge spout and through these spiders slidably passes the stem 34 ofa float valve 35 which is an upwardly opening check valve and normallyrests in a closed position upon a valve seat 36 formed about the lowerend of the pipe 29. portion of the stem 34 or a separate rod, extendsdownwardly from the float valve 35 and when this rod contacts the bottomof the recess 3'the valve will be shifted upwardly and water in thechamber 21 allowed to flow through the pipe" 29 and into the lowerportion of the tank-under the container. During downward movement of thecontainer the finger 38 projecting outwardly from the lower end of a rod39 carried by the container engages the finger l3 of thes'tem H andshifts the stem and the valve plunger l0 downwardly so that the outletneck 1' is closed and water flowing from the pipe 29' will be confinedin the casing or tank and gradually fill the tank with water. As thefloat-forming portion of the container causes the container" to moveupwardly in the casing the finger 38 moves upwardly towards the upperend of the stem I I and when it engages the finger IZ'the stem will bedrawn upwardly and the'valve I-O moved to its raised or openedposition.' Water may then flow through the neck 1 and the lower portionof the' tubular valve casing-3 and the sump 6 will be filled with waterand water flow; through the trough 5. As water flows from't-he"bottom"-o- A rod 31, which may be a 4 the tank or casing the containerwill move downwardly until the valve In is again closed and the valve 35opened to allow escape of water from the water chamber 21.

A portion of the water flowing from the tank is to be delivered to a.reservoir 40 mounted in an elevated position upon a support 4|. In orderto do so there has been provided a pump 42 having a vertically disposedcylinder 43 in which operates a piston 44 having an upwardly extendingpiston rod 45. This piston rod has its upper end pivotally connectedwith a rocker bar 46 tiltably mounted upon a pivot 41 and having itsinner end-pivoted to a bail 48 projecting upwardly from the containerand mounted in openings 49 at opposite sides of the container. Thereforeas the container moves upwardly and downwardly the rocker bar will betilted vertically and the piston reciprocated in the pump cylinder 43 sothat water will be drawn from the sump 6 through the pipe 50 into thepump and then forced through the discharge pipe 5 l and into thereservoir during operation of the pump.

The float valve 35 operates on the same principle as the float valve ina toilet reservoir. When it is raised, the flow of water past the convexsurface of the valve maintains it in raised position until said flowdiminishes to the extent that the valve may again drop into the seat.

Having thus described the invention what is claimed is:

1. In a pump, a main casing having a bottom and formed with an outlet ata side of its bottom, a container slidable vertically in said casingthrough the upper end thereof, a partition in said container dividingthe same into a lower air chamber and an upper water chamber adapted tobe filled through its top, a conduit extending downwardly from the waterchamber through the air chamber and the bottom of the container fordelivering water into the casing under the container and formed with avalve seat at its lower end; avalve in said conduit normally restingupon said seatand having a stem extending verticallyin the conduit withits lower portion projecting downwardly in position for engaging thebottom of the casing and shifting the valve upwardly to an openedposition as the container approaches the limit of its downward movementand thereby allowescape of water from the water chamber through theconduit and into the casing and out through'th'e' outlet of the casing,a sump into which water flows from said casing, a tubular valve casingdisposed vertically over said 'sump and through which water flows fromthe outlet of the main casing, a piston valve in said valve casingslidable vertically from a lowered position closing the outlet of themain casing upopened and closed positions during vertical movement ofthe container involves influence of water in its upperc'hamber and airin its lower chamber, .a pump disposed'vertically and having anintakejpipeextending downwardly from its lower end "into said 'sumpand'a' discharge pipe leading from its upper end to'areservoir, a'pisto'noperating in said cylinder and having a rod projecting from the upperend of the cylinder, a bail carried by and extending upwardly from saidcontainer, and a rocker bar connected at its ends to the piston rod andthe bail and actuating the pump during vertical movement of thecontainer to draw water from the sump and force the water to thereservoir.

2. In a pump, a main casing open at its top and formed with an outlet atits bottom, a container slidable vertically in said casing through theopen top thereof and formed with an upper water chamber open at its topfor filling and with a closed air chamber under the water chamber, adischarge pipe extending downwardly from the water chamber into thelower portion of said casing and controlled by an upwardly opening valveadapted to be moved upwardly to an opened position by a downwardlyextending rod having engagement with the bottom of the casing as thecontainer approaches the limit of its downward movement in the casing, avalve casing with which the outlet of the casing communicates, a troughfor receiving water from the valve casing, a valve movable vertically insaid valve casing to opened and closed positions and having an upwardlyextending stem provided with upper and lower abutments, an arm carriedby said container and having a portion disposed between said abutmentsfor opening and closing the valve during vertical movement of thecontainer, a pump having an intake pipe extending into said trough,operating means for said pump actuated by movement of said container,and a discharge for said pump.

3. In a pump, a main casing having an outlet at its bottom communicatingwith a vertical valve casing, disposed externally of the casing over asump at the end of a trough leading from the casing, a containerslidable vertically in said main casing and formed with an air chamberand with a water chamber over the air chamber having a discharge pipeextending downwardly through the air chamber and into the lower portionof the main casing, an upwardly opening valve for said pipe movable toan opened position by engagement with the bottom of the main casingduring downward movement of the container, a valve member in said valvecasing shiftable vertically to opened and closed positions and having astem extending upwardly, a toggle structure yieldably resisting movementof the stem and the valve member, an arm carried by said container andengaging the stem to impart opening and closing movement thereto duringmovement of the container, a pump having an inlet pipe communicatingwith said sump and a discharge pipe, and operating means for said pumpactuated by vertical movement of the container.

4. In a pump, a main casing having an outlet at its bottom communicatingwith a valve casing disposed vertically at a side of the main casingover a sump of a trough, a container slidable vertically in the maincasing and formed with a float and a water chamber over the float, thewater chamber having a discharge pipe extending downwardly through saidfloat into the portion of the main casing under the container and beingcontrolled by a valve normally closed and adapted to be moved upwardlyto an opened position by contact with the bottom of the main casing, avalve slidable vertically in thevertical valve casing, a member carriedby said container and serving to intermittently open and close thevertically slidable valve during vertical movement of the container, apump for withdrawing water from the sump, and operating means for saidpump actuated by vertical movement of said container.

5. In a pump, a main casing having an outlet at its bottom andcommunicating with a controlled discharge pipe in position fordelivering water into a sump of a trough, a water container slidablevertically in said main casing and provided with a float at its bottom,an outlet pipe for said Water container extending downwardly through thefloat and communicating with the lower por tion of said casing andcontrolled by a valve adapted to be opened as the container and floatapproaches the bottom of the casing and closed during upward movement ofthe container and float, means carried by said container for opening andclosing the valve of the discharge pipe during upward and downwardmovements of the container and the float means for delivering water intosaid container, a reservoir, a pump having an inlet pipe communicatingwith said sump and a discharge pipe communicating with the reservoir,and operating means for said pump adapted to be actuated by verticalmovement of the container.

JOHN M. BALDWIN.

1 REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 939,506 Hubmann Nov. 9, 19091,615,556 Stanworth Jan. 25, 1927

